Greece has well over 1.000 radio stations, most of them on the FM band, the AM band being almost entirely abandoned by everyone but the State-run media and a few notable exceptions. In March 2001, the Greek government shut down approximately 60 of the 90+ FM radio stations in the Athens area, citing interference to frequencies to be used by the new Athens International Airport. There are some who believe that the government shut down these stations as a political favor to powerful publishing and media groups, whose stations, for the most part, remained on the air, while others argued that the licensing process was legally inconsistent.
As a result, the licensing process came under legal scrutiny, and in 2002, 8 of these stations reopened, and in 2004-2005, several more stations reopened following a relevant court order. Since then, more stations have opened, most of them without any legal permission to do so. Many of these stations are the same ones which were shut down in 2001. It is unknown yet what a new licensing process will look like and what it will require of applicants, which stations and how many stations will be licensed, and what will happen to stations that are unlicensed, considering the current government's inability or lack of will to control the airwaves. Here is a list of some major FM stations in Greece.
Most radio stations in Athens broadcast from Mount Ymittos, to the east of the city (but west of the Athens International Airport in Spata). A smaller minority of stations operate from Mount Parnitha, northwest of the city, or Mount Egaleo, bordering the west of the city. Many stations also have repeaters on the island of Aegina, south of Athens in the Saronic Sea, to cover coastal regions of Athens, including Glyfada and Vouliagmeni, which due to the topography of the region, cannot receive clear signals from the other locations.
Most stations broadcast in stereo and several employ the Radio Data System (RDS) technology. Most stations also broadcast with rather high wattage, ranging anywhere from 2 kW to 15-30 kW or perhaps more, as official data on this isn't made available publicly. Currently, 43 private stations are legally permitted to broadcast in Athens, in addition to the state radio broadcast stations.
Recently, BARI-Focus -  - was chosen as the official company to measure audience listening data and ratings for stations in the Athens region. Previous to that, BARI-Focus had been one of several companies tracking audience ratings.
In the Thessaloniki region a licensing bid for 27 FM frequencies has been on hold for several years, while engineering studies have shown that up to 19 more radio stations could possibly broadcast safely in the region, though it remains to be seen how many, if any, additional frequencies will be tendered.
Most radio stations in Thessaloniki broadcast from Mount Hortiatis, slightly northeast of the city. A very small minority broadcast from or have repeaters in other points throughout the region. Most stations broadcast in stereo, but a small (but slowly growing) number use the Radio Data System. Like in Athens, most stations use excessively high wattage. Temporarily, most, but not all, stations are broadcasting with legal "permission" from Greece's Radio-Television Committee (ESR), until and if new licenses are issued.
The rest of Greece has close to 1.000 stations operating, most (but not all) of them unlicensed but with a temporary broadcast permit issued by the Radio and Television Committee. The list is a work in progress.
On the AM band there are few licenced stations left - all state run, but unlicensed broadcasting is tolerated as the majority of the listeners have abandoned the MW band. A number of unlicensed radio stations have taken advantage of that, thus avoiding the "crowded" FM band. Also a number of pirate radio enthusiasts use the expanded upper part of the AM band (1600–1710 kHz) for "experimental" transmissions. In the "old" days of MW pirate radio broadcasting - there was a format division between the AM and FM, in Athens and Thessaloniki. On the MW/AM band most radio pirates in Athens were broadcasting foreign music (pop, rock) whereas in FM most radio pirates broadcast Greek popular music. In Thessaloniki, and most of the rest of Greece, it's the opposite: on MW/AM pirates were playing Greek popular music, and in FM foreign pop and rock. Nowadays, with one or two exceptions, nearly all MW/AM radio pirates play Greek popular music to a very limited but dedicated audience.
All the state-run radio stations still broadcast their programmes on the MW band, except the ERA 3 (Third Programme) which gave its frequency (666 kHz) to an AM only station ERA Filia (Friendship). ERA 1 on 729 kHz - News, talk, light music. ERA 2 on 1386 kHz with entertainment, young culture, pop, rock. ERA Sport on 981 kHz with sports. ERA Filia on 666 kHz also but listed on 665 kHz. A radio station geared toward the immigrant communities in Greece. The programme is shared with another state station KOSMOS (cultural & ethnic music). Since unlicensed broadcasting on the AM in Greece is illegal but tolerated, some pirate radio stations broadcast full fledged radio programmes, some with commercials and some experimental. A notable example is on 1098 kHz, broadcasting experimentally in C-QUAM, AM Stereo, one of the few AM Stereo radio stations in Europe. Other unlicensed radio stations on the MW are found on 909 kHz, 1017 kHz, 1035 kHz, 1188 kHz and others. On the AM expanded band (1600–1710) numerous radio pirates transmit experimentally without regular schedule, or programme, mostly Greek popular music along with Q code QSO.
The two official state-run radio programmes still broadcast their programmes on the MW: The first programme of the Radio Station of Macedonia on 1044 kHz and the second programme on 1179 kHz (simulcasting along with their FM services). The most notable unlicensed radio station in Thessaloniki is the 1431AM, a free radio station broadcasting regularly from the Aristotle University of Thessaloniki campus in the centre of the city. Other pirate radio stations in the Thessaloniki area are using the 1566 kHz and the AM expanded band (1600–1710). There numerous radio pirates transmit experimentally without regular schedule, or programme, mostly Greek popular music along with Q code QSO.
State-run ERA radio stations broadcast the ERA International Network programme to the Mediterranean and south-east Europe on 765, 927, 1008, 1404, 1494 & 1512 kHz in Greek. These are transmitter that broadcast regional programmes as well in Crete (1512 kHz), Rhodes 1494 kHz, Zante 927 kHz, Ioannina 765 kHz, Corfu 1008 kHz and Komotini (Thrace) 1404 kHz. Some others regional radio stations still broadcast in AM their programme (ERA National network): Kavala & Kozani 1602 kHz, Volos 1485 kHz, Pyrgos 1305 kHz, Florina 1278 kHz, Orestias 1080 kHz and Heraklion Crete 954 kHz. Two high powered transmitters (500 kW) from Rhodes (1260 kHz) and the region of Macedonia (792 kHz) broadcast a selection from ERA 1, ERA 2 and ERA Sport programmes to the Greek diaspora. Numerous pirate radio stations, many of them high powered, broadcast irregularly throughout Greece. Most from the central-northern part of the country (Thessaly, West and Central Macedonia) but there are AM radio pirates in Thrace, Crete, Cyclades and Peloponnese as well. Most common frequencies used are: 1629, 1620, 1606, 1602, 1575, 1566, 1539, 1521, 1503, 1479, 1368, 1359, 1347, 1233, 1206. They usually play Greek folk and popular music. On the AM expanded band (1600–1710) numerous radio pirates transmit experimentally without regular schedule, or programme, mostly Greek popular music along with Q code QSO.
There are two radio programmes broadcast on the Shortwave HF band: ERA 5 (the Voice of Greece) in Greek and a number of other languages to an international audience and the Greek diaspora and ERT Macedonia 3 (Radio station of Macedonia: Third programme) only in Greek, for the Greek diaspora. Frequencies, languages and schedules vary but common frequencies for ERT Macedonia 3 are 7450, 9935 and 11595 kHz, and for ERA 5 are 7475, 9420, 15630 kHz.
There are currently no regular broadcasts on DAB or DRM digital radio in Greece, but there are occasionally DAB tests broadcasting in the Athens and Thessaloniki areas on channels 13A, 13B, 13C since 2003. Most radio stations in Greece stream their audio on the Internet.
uBroadcast.gr Full list of radio stations broadcasting online from Greece, plus an HTML5 Player for all devices and a massive online chat to help users, dj's, producers and radio stations to socialize.
Greek-Radio.fm Full list of radio stations broadcasting online from Greece.
Live24.gr A catalog of some radio stations broadcasting online from Greece.
E-Radio.gr A catalog of some radio stations broadcasting online from Greece.
GreekRadios.gr A catalog of all radio stations broadcasting online from Greece.
Radiofono.gr Frequency listings of Greek and Cypriot Radio and Television stations, plus live Greek radio and television broadcasts.
Media.net.gr Frequency listings of Greek and Cypriot Radio and Television stations, plus live Greek radio and television broadcasts.
24htv.eu A catalog of live Greek radio and television broadcasts.